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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:10208 – Aḥmad b. ʿAbdullāh b. al-Ḥakam > Muḥammad b. Jaʿfar > Shuʿbah > ʿAmr b. Murrah > Abū Burdah

O people, seek repentance from Allah. Verily, I seek repentance from Him a hundred times a day. (Using translation from Muslim 2702b)   

الكبرى للنسائي:١٠٢٠٨ – أَخْبَرَنَا أَحْمَدُ بْنُ عَبْدِ اللهِ بْنِ الْحَكَمِ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ عَنْ عَمْرِو بْنِ مُرَّةَ عَنْ أَبِي بُرْدَةَ قَالَ

سَمِعْتُ الْأَغَرَّ وَكَانَ مِنْ أَصْحَابِ النَّبِيِّ ﷺ عَنِ ابْنِ عُمَرَ قَالَ قَالَ رَسُولُ اللهِ ﷺ «تُوبُوا إِلَى رَبِّكُمْ فَإِنِّي أَتُوبُ إِلَيْهِ فِي الْيَوْمِ مِائَةَ مَرَّةٍ»  

See similar narrations below:

Collected by Muslim, Aḥmad's Zuhd

Prophetic command to seek repentance

muslim:2702b – Abū Bakr b. Abū Shaybah > Ghundar > Shuʿbah > ʿAmr b. Murrah > Abū Burdah > al-Agharr > Ibn ʿUmar

The Messenger of Allah ﷺ said, "O people, seek repentance from Allah. Verily, I seek repentance from Him a hundred times a day."  

مسلم:٢٧٠٢b – حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا غُنْدَرٌ عَنْ شُعْبَةَ عَنْ عَمْرِو بْنِ مُرَّةَ عَنْ أَبِي بُرْدَةَ قَالَ سَمِعْتُ الأَغَرَّ وَكَانَ مِنْ أَصْحَابِ النَّبِيِّ ﷺ يُحَدِّثُ ابْنَ عُمَرَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ: «يَا أَيُّهَا النَّاسُ تُوبُوا إِلَى اللَّهِ، فَإِنِّي أَتُوبُ فِي الْيَوْمِ إِلَيْهِ مِائَةَ مَرَّةٍ۔»  

ahmad-zuhd:213 – ʿAbdullāh > Bī > Yaḥyá > Shuʿbah > ʿAmr b. Murrah > Abū Burdah > al-Aghar a man from Juhaynah > Ibn ʿUmar

[Machine] "He heard the Messenger of Allah ﷺ say, 'O people, repent to your Lord, for indeed I repent to Him a hundred times a day.'"  

الزهد لأحمد:٢١٣ – حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنَا أبِي حَدَّثَنَا يَحْيَى عَنْ شُعْبَةَ عَنْ عَمْرِو بْنِ مُرَّةَ قَالَ سَمِعْتُ أَبَا بُرْدَةَ قَالَ سَمِعْتُ الْأَغَرَّ رَجُلًا مِنْ جُهَيْنَةَ يُحَدِّثُ ابْنَ عُمَرَ

أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ «يَا أَيُّهَا النَّاسُ تُوبُوا إِلَى رَبِّكُمْ فَإِنِّي أَتُوبُ إِلَيْهِ فِي الْيَوْمِ مِائَةَ مَرَّةٍ»